<template lang="html">
  <div class="list" ref="warpper">
    <div>
      <div class="area">
        <div class="title border-topbottom">当前城市</div>
        <div class="button-list">
          <div class="button-wrapper">
            <div class="button">{{this.$store.state.city}}</div>
          </div>
        </div>
      </div>
      <div class="area">
        <div class="title border-topbottom">热门城市</div>
        <div class="button-list">
          <div
            class="button-wrapper"
            v-for="item of hot"
            :key="item.id"
            @click="handleCityClick(item.name)"
            >
            <div class="button">{{item.name}}</div>
          </div>
        </div>
      </div>
      <div class="area" v-for="(item, key) of cityList" :key="key" :ref="key">
        <div class="title border-topbottom">{{key}}</div>
        <div class="item-list">
          <div class="item border-bottom" v-for="i of item" :key="i.id" @click="handleCityClick(item.name)">{{i.name}}</div>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import BScroll from 'better-scroll'
export default {
  name: 'CityList',
  props: {
    cityList: Object,
    hot: Array,
    letter: String
  },
  watch: {
    letter () {
      this.scroll.scrollToElement(this.$refs[this.letter][0])
    }
  },
  methods: {
    handleCityClick (city) {
      alert(city)
      this.$store.dispatch('changeCity', city)
    }
  },
  mounted () {
    this.scroll = new BScroll(this.$refs.warpper)
  }
}
</script>

<style lang="stylus" scoped>
  .border-topbottom
    &:before
      border-color: #ccc
    &:after
      border-color: #ccc
  .border-bottom
    &:before
      border-color: #ccc
  .list
    position: absolute
    top: 1.58rem
    left: 0
    right: 0
    bottom: 0
    overflow: hidden
  .title
    line-height: .54rem
    background: #eee
    padding-left: .2rem
    font-size: .26rem
  .button-list
    padding: .1rem .6rem .1rem .1rem
    overflow: hidden
    .button-wrapper
      float: left
      width: 33.333%
      .button
        margin: .1rem
        padding: .1rem 0
        text-align: center
        border: .02rem solid #ccc
        border-radius: .06rem
  .item-list
    .item
      line-height: .76rem
      padding-left: .2rem
</style>
